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23 April 2024 |
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A Cooper pair light emitting diode | | H. Sasakura
; S. Kuramitsu
; Y. Hayashi
; K. Tanaka
; T. Akazaki
; E. Hanamura
; R. Inoue
; H. Takayanagi
; Y. Asano
; I. Suemune
; | | Date: |
27 Oct 2009 | | Abstract: | We demonstrate Cooper-pair’s drastic enhancement effect on band-to-band
radiative recombination in a semiconductor. Electron Cooper pairs injected from
a superconducting electrode into an active layer by the proximity effect
recombine with holes injected from a p-type electrode and dramatically
accelerate the photon generation rates of a light emitting diode in the
optical-fiber communication band. Cooper pairs are the condensation of
electrons at a spin-singlet quantum state and this condensation leads to the
observed enhancement of the electric-dipole transitions. Our results indicate
the possibility to open up new interdisciplinary fields between
superconductivity and optoelectronics. | | Source: | arXiv, 0910.5161 | | Services: | Forum | Review | PDF | Favorites | |
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